Which of the following factors can influence indoor air quality?

Humidity and temperature levels significantly influence indoor air quality by affecting how airborne contaminants behave and how comfortable occupants feel within a space. High humidity can promote mold growth and dust mites, while low humidity can lead to dry skin and respiratory issues. Temperature, on the other hand, impacts the comfort level of occupants and may also affect the performance of air filtration systems. Maintaining appropriate humidity and temperature levels is crucial for ensuring a healthy indoor environment.

While outdoor air quality, the age of a building, and the maintenance of HVAC systems also play roles in indoor air quality, they are not the only factors. For instance, outdoor air quality can affect indoor quality but does not solely determine it. Similarly, while older buildings may have different air quality challenges, it’s not the only influence to consider. Active maintenance of HVAC systems is essential and can substantially improve indoor air quality, but it operates within the context of how indoor conditions are managed, including humidity and temperature. The interplay of these factors highlights the necessity of considering them collectively when assessing indoor air quality.